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Atom
,→About Atoms beyond The Dalton Model
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: In an [[atom]] the number of [[electron]]s is always the same as the number of [[proton]]s in the [[Atomic Nucleus|nucleus]].
: Different [[atom]]s can have different numbers of [[proton]]s and [[neutron]]s.
: The simplest [[atom]] is [[Hydrogen]] which has 1 [[proton]] and 1 [[electron]] and no [[neutron]]s.